OVER THE AIR GNSS TESTING USING MULTI-CHANNEL GENERATORS TO CREATE SPATIALLY-DISPERSED SIGNALS
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United States of America Patent
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Issued Date -
Aug 14, 2014
app pub date -
Feb 13, 2013
filing date -
Feb 13, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The problem of simulating movement of multiple GNSS or regional navigational satellite system satellites across the sky within a test environment is solved by the technology disclosed using a test chamber with a plurality of zones bounded by azimuth and elevation limits, positioning at least one directional antenna in each zone, driving each antenna individually with a GNSS simulator capable of producing multiple positioning signals for a plurality of satellite sources in a single zone, and coordinating among GNSS simulators a simulated orbital movement of the satellite sources from one zone to an adjoining zone to produce changing angles of arrival for the positioning signals during a test. Both methods and systems implement this technology.
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